Device for making axle casings or the like



Aug. 4, 1925 A; C. SCOTT DEVICE FOR MAKING AXLE CASINGS OR THE LIKEFiled Jan. 8, 1924 FIG-'5.

fflvenfor 1925971 a 56055 Patented Aug. 4, 1925.

UNITED STATES ALBERT COMMON SCOTT, OE EDINBURGH, SCOTLAND.

DEVICE FOR MAKING AXLE CASING-S OR THE LIKE.

Application ma January 8, 1924.. Serial No. 635,046.

To all whom it may concern:

Be it known that I, ALBERT- COMMON Soon, a subject of the King of GreatBritain and Ireland, residing at 14 Brougham Place, Edinburgh, county ofMi-dlothian, Scotland, have invented new and useful Improvements in aDevice for Making Axle Casings or the like, of which the fOllOwing is aspecification.

The said invention has for its object to provide an improved and simpledevice for use in expeditiously and economically constructing rear axlestructures for motor road vehicles, of the type in which the axlestructure comprises a central frame for supporting the diiferentialgear, and two tubular sleeves through which the driving axles of therear wheels extend.

In carrying out my invention, the devic consists of two angle pieces,having upturned opposing ends, arranged to slide freely on, or in, abase plate, and so that they may move away from, or towards, each other,in a direct line. To the upturned-ends of these angle pieces, areattached two blocks, the outer faces of which are convexly shaped andcorrespond to the internal contour of the central frame to be produced.On either side of these inner blocks are arranged two outer blocks, oneof which is preferably fixed to the base plate, whilst the other ismovable, but means are provided for holding same in a predeterminedposition. The opposing faces of the outer blocks are recessed, withconcavely projecting parts at the top and bottom, the distance betweenthese projecting parts is determined by the size of the central frame tobe produced.

The device is operated by a wedge which is pressed between theupturned-ends, of the angle pieces, to which the inner blocks areattached, forcing same apart.

In order that my said invention and the manner of performing the samemay be properly understood, I hereunto append sheet of explanatorydrawings to be hereinafter referred to in descibing my invention.

Figures 1 and 2 are respectively a side elevation, and a cross section,of a tube of varying diameter, and having diametrically opposed slits,from which the axle structure is to be produced. Figs. 3 and 4 aresimilar views showing the tube partially opened. Figs. 5 and 6 aresimilar views, butshowing the tube completely opened and formed to serveas a central casing. Fig. 7-is a side elevation of the tool employed toimpart the form shown in Figs. 3 and 4. Figs. 8 and 9 are respectively asectional side elevation and a plan of the device employed to impart thecompleted form, shown in Figs. 5 and 6. In these drawings the samereference numerals are used to mark the same or like parts whereverthey'are repeated.

As shown in Figs. 8 and 9 of the drawings, the device consists of twoblocks 1 and 2. The block 1 is fixed on the base plate 3, whilst theblock 2 is retained in position thereon by a stop 4. The opposing facesof the blocks 1 and 2 are provided with recesses 5 and 6, preferablyconforming to the final external contour of the central frame of theaxle, and also with concavely projecting parts 7 8 and 9 10 at the topand bottom respectively. Interposed between the blocks 1 and 2 are twosmall blocks 11 and 12, the outer face, in each case, being convexlyshaped so as to conform to the final internal contour of the centralframe of the axle, and said blocks are connected respectively to theupturned-ends of the angle pieces 13 and 14, which are guided and slidein the base plate 3, so as to allow of them moving away from, Ortowards, each other, in a direct line, by means of a wedge 15.

The tool shown in Fig. 7 consists of a base plate 18 and two jaws 19 and20 disposed thereon, the jaw 19 being fixed, and the jaw 20 movable,these jaws being adapted to engage with and apply pressure to the sidesof the elongated slot (Fig. 1) in the tube, whereby said slot isextended or drawn out to the form shown in Figs. 3 and 4.

In operation the action of the improved device is as follows The tube isheated, and its central part 16, shown in Figs. 1 and 2, is drawn out tothe form shown in Figs. 3 and 4, by means of the tool shown in Fig. 7 ashereinbefore described. The central part 16 of the partially formed axlestructure, as shown in Figs. 3 and 4, is now introduced between theblocks 1 and 2 with its longitudinal axis at right angles thereto, andso that the blocks 11 and 12 projectwithin said central part. The blocks11 and 12 are now forced apart by means of the wedge 15, pressingagainst the opposing faces of the upturned angle pieces 13 and 14, thusimparting to the axle structure the final form shown in Figs. 5 and 6,that is to say, a circular form, with an inwardly pro- A device for usein the manufacture of.

rear axle casings or structures for motor road vehicles comprising baseplate, a pair.

of spaced blocks fixedlyinoiinted thereon, the inner feces of said fixedblocks having recesses therein forming concave Walls, the two Wallsbeing opposed to one another and lying in su bste ntiallythe se necircle, a pair of inner movable forming blocks disposed in the spacebetween the fixed blocks, said forming blocks being smaller than therecesses and adapted 'to enter the recesses, w ereby to orce en. ep rt pof metal into the recesses and transform it into a circuler bend havingflanges projecting inwardly from its edges. i

In testimony whereof I have signed my name to this specification.

ALBERT COMMON SCOTT.

